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The normal sequence of nine genes on a certain Drosophila chromosome is 123456789, where the dot represents the centromere. S

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123 o 458769 is a Inversion (Paracentric). During meiosis the aberrant chromosome would form a loop to align with the normal chromosome.

123 o 46789 is a Deletion. During meiosis, the normal chromosome would form a loop to align with the aberrant chromosome.

1654 o 32789 is a Inversion (Pericentric). During meiosis the aberrant chromosome would form a loop to align with the normal chromosome.

123 o 4566789 is a Duplication. During meiosis the aberrant chromosome would form a loop to align with the normal chromosome.

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